While there are numerous ways to automate tasks on Linux, there is one technology that stands out above the rest for automation at scale, and that is Ansible. Although it is entirely possible to automate a task (or tasks) easily with a shell script, there are a number of disadvantages to this, the most significant being that shell scripting does not scale up well in large environments. It should be said that there are other automation tools, but Ansible makes use of native communication protocols (for example, SSH on Linux, and WinRM on Windows) and hence is completely agentless! This makes deploying it into existing environments simple. While automation with Ansible is a huge, in-depth subject, this chapter is intended to cover the basics and get you up and running rapidly so that, even if you have no prior experience, you can follow...
Hands-On Enterprise Automation on Linux
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Hands-On Enterprise Automation on Linux
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Overview of this book
Automation is paramount if you want to run Linux in your enterprise effectively. It helps you minimize costs by reducing manual operations, ensuring compliance across data centers, and accelerating deployments for your cloud infrastructures.
Complete with detailed explanations, practical examples, and self-assessment questions, this book will teach you how to manage your Linux estate and leverage Ansible to achieve effective levels of automation. You'll learn important concepts on standard operating environments that lend themselves to automation, and then build on this knowledge by applying Ansible to achieve standardization throughout your Linux environments.
By the end of this Linux automation book, you'll be able to build, deploy, and manage an entire estate of Linux servers with higher reliability and lower overheads than ever before.
Table of Contents (23 chapters)
Preface
Section 1: Core Concepts
Free Chapter
Building a Standard Operating Environment on Linux
Automating Your IT Infrastructure with Ansible
Streamlining Infrastructure Management with AWX
Section 2: Standardizing Your Linux Servers
Deployment Methodologies
Using Ansible to Build Virtual Machine Templates for Deployment
Custom Builds with PXE Booting
Configuration Management with Ansible
Section 3: Day-to-Day Management
Enterprise Repository Management with Pulp
Patching with Katello
Managing Users on Linux
Database Management
Performing Routine Maintenance with Ansible
Section 4: Securing Your Linux Servers
Using CIS Benchmarks
CIS Hardening with Ansible
Auditing Security Policy with OpenSCAP
Tips and Tricks
Assessments
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